Canada



(No Model.) 2 Sheets-Sheet 1.

P. P. FINDLAY & A. MOINNIS. APPARATUS FOR OPERATING PUMPS.

No. 363,617. Patented May 24, 1887.

(No Model.) 2 SheetsSheet 2.

P. P. FINDLAY & A. MoINNIS. APPARATUS FOR OPERATING PUMPS.

No. 363,617. Patented May-24.1887.

QIIIHTWIIIQILIIIMM PIIHIIWIMII UNITED STATES PATENT OFFICE.

PETER P. FINDLAY AND ANGUS MOINNIS, OF DONALD, BRITISH COLUMBIA, CANADA.

APPARATUS FOR OPERATING PUMPS.

SPECIPICATIQN forming part of Letters Patent No. 363,617, dated May 24,1887.

Application filed March 14, 1887. Serial No. 230,764. (No model.)

To all whom, it may concern..-

Be it known that we, PETER PRESTON FiND- LAY, carpenter, and ANGUsMoINNIs, carpenter, both of the town of Donald, in the district ofKootenay, in the Province of British Columbia, Canada,havejointlyinvented certain new and useful Improvements in Apparatus forOperating Pumps, of which the following isa specification.

The object of the invention is to construct a machine so that with asmall amount of leverage to contend with a much longer stroke may beattained than is possible by the crank principle of attaining length ofstroke. For instance, to attain a fifteen-inch stroke in the usual wayby the crank principle, the connection with crank would have to be sevenand one-half inches off the center, and the leverageto contendwith'would be seven and one-' half inches,while the whole sweep of thecrank would be 47.2 inches. By the reacting prineiple demonstrated bythis invention to attain the same length of strokeviz., fifteeninches-by one full revolution of the driver, it is only necessary tohave a wheel fifteen inches in circumference, 4.75 inches in diameter,or 2.37 inches radius. Consequently, in this instance we can attain thesame length of stroke, fifteen inches, while the leverage to contendwith is only 2.37 inches. Here the wheel makes a full revolution and theslide runs from end to end. WVhen the slide connected with the pistonruns only half-way, returning in its movement at the half-circumferenceof the cog-wheel, to attain the same length of stroke-viz., fifteeninches-'-it is necessary to have a wheel of sufficient diameter to givethirty inches of circumference-22 e., a diameter of nine and one-halfinches or four and threefourths inches radius-so that in this instancethe leverage to contend with is four and three-fourths inches. Toproduce this movement it is necessary that an inclined plane should beplaced in the middle of the slide, as indicated at NV.

This device or invention is peculiarly adapted for pumps used for miningpurposes, where a long slow stroke is required, while the leverage to becontended with, as before indicated, will be but small.

Figure 1 is a perspective view of the machine, showing the relativepositions of the various parts at the beginning of a stroke. The spindleinstead of being vertical, as shown in the drawings, may be horizontalor in any other position. In this View the frame is partially brokenawayto exhibit thepeculiar construction. Fig. 2 is a detail of theslide, (which gives motion to the pump piston,) showing racks ondifferent planes on which the cog-wheels work, and also showing theinclined planes placed there for the purpose of throwing the cog-wheelsinto and out of gear with the circular disks, as hereinafter explained,and also showing the plates on which 65 the recessed parts or lips ofthe drivers work.

Fig. 3 is a section through a bin Fig. 1. Fig.

4 are details of the cog-wheels and the two circular disks or flangeswhich engage with the said cog-wheels, all of which work on the spin- 7odle or shaft which is actuated by the drivingpower. Fig. 5 is the underface of the upper cog-wheel in Fig. 4, showing the metal ring which isplaced under the hook-shaped lugs shown on the lower cog-wheel in Fig.4, before the spindle is passed through the flanges and cog-wheels, andindicating the means of connecting the two cogwvlxeels, so as to enablethem to shift their position together at the beginning and end of eachstroke,while also enabling them to revolve in a eontrariwise directionon the spindle or shaft when the machine is in operation, as hereinafterexplained.

Similar letters indicate similar parts in the various figures.

A in the drawings is the circular disk farthest from the power, andrigidly connected to the shaft D by key cl, (aide Fig. 3,") and having anotch, O, cutout for the purpose of forming a shoulder against which thedriver or pushing-arm E may engage, so that when the driver E becomesengaged in said notch G and against said shoulder the, cog-wheel Fpartakes of this motion of the circular disk A,

and drives the slide which actuates the piston. Said driver E is rigidlyfastened on the cogwheel F, or is cast in one piece therewith,and theend thereof has lips or a hollowed-out portion, j, which engages withthe side plate, 1;, at the proper time in the course of the revolutionof said cog-wheel F, for the purpose of keeping the two cog-wheels F andG in their proper relative position on the shaft when the machine is inoperation. The end of said cogwheel F has a hub or hollow axle, whichfits into a circular recess in said circular disk A, and is not rigidlyattached to said shaft D.

Both of the cog-wheels have teeth varying in number according to thecircumference of the cog-wheels, which cog-wheels engage in their'respective racks R R, which are placed in the slide S 011 differentplanes and on opposite sides thereof, and should contain at least onemore tooth than in the periphery of the cogwheels. The cog-wheel Gis ofaeonstruetion similar to F,and said cogwheels are connected togetherback to back, as shown by Figs. 4 and 5.

g is a metal ring fastened to cog-wheel, and h h are hook-shaped lugswhich rest on said ring 9. This cog-wheel G, like cog-wheel F, is notrigidly attached to the shaft D, bntsaid shaft passes through both itand the adjoining cog-wheel, on which shaft they move in a directionalways opposite to one another when the machine is working, while at thesame time they can move together along the shaft, by reason of theirconnection by the ring 9 and lugs h h, when the drivers E and M engagewith the shoulders in the notches O O; and as the cog-wheels F and Gcome in gear and par-- take, respectively, of the motion of theadjoining circular disks A and T, the said cog-wheels are thrown intoand out of gear by reason of the drivers E and M working up the inclinedplanes at the beginning and end ofeach stroke, and by moving thecog-wheels along the shaft one driver is disengaged or lifted from itsnotch in its adjoining circular disk, thus leaving this other cog-wheelfree to revolve back,partaking of the motion of the slide S, while theother driver at the same time is moved into and en gages in the notch ofits adjoining circular disk, and so the cog-wheel of which it forms apart partakes of the motion of its adjoining circular disk and moves theslide forward or backward, as the case may be, in the stroke. Thiscog-wheel G has a hub or 'hollow axle similar to cog-wheel F, and whichworks in the circular recess in the circular disk T, and has a pusher ordriver, M, with lips or hollowed portion 70, which engages with thesupportingplate 9 during a portion of the revolution for the purpose ofkeeping the cog-wheels F and G in their proper position on the shaft D.

The circular disk or flange T is similar in construction to A, withcircular recess for the hub of cog-wheel G, and has a notch, G, andfaces the other disk, A, as shown. It is rigidly attached to the shaft Dby being keyed thereon by the key e, as shown in Fig. 3, or in any othersuitable way, and is so placed on the shaft. (ride Fig. 3) as to allowof a sufficient movement of the cog-wheels F and G along the shaft orspindle D for one driver to clear its adjoining circular disk while theother driver is engaged against the shoulder in the notch of itsadjoining disk, and thus by means of the cog-wheel, of which thelatterdriver forms a part, gives motion to the slide S. Only one ofthese drivers is engaged at one time, while the other is moving aroundin an opposite direction until it reaches the top or bottom of theslide, as the case may be.

D is the shaft or spindle, to which the circular disks are attachedrigidly in such a po sition that the notches O G or shoulders areopposite to one another,or at about a one-half revolution orcircumference of the disk. The cogwheels F and G'also revolve on saidshaft, as described, and said shaft rests and works in bearings in theframe-work of the machine, as shown in Fig. 3 at K K, and is connectedwith the driving-power at P.

The slide S (ride Figs. 1 and 2) works in suitable grooves, Q Q, in theframe-work of the machine and contains the racks R R, the teeth of whichmesh with the teeth on the cogwheels F and G, and are placed opposite toone another on the slide and at different planes, so as to engage withthe teeth of their respective cog-wheels. These racks and teeth aresufficiently wide to allow for the shifting motion of the cog-wheelsalong the shaft as the drivers or pushers E and M are moved into or outof gear with their respective circular disks A T. The teeth on theseracks are directly opposite to each other.

00 and y are the inclined planes placed in the positions shown in thedrawings, which the drivers E and M mount at the commencement and end ofeach stroke, thus alternately causing a driver to engage with the notchin its adjoining circular disk and cause the cogwheel to receive itsmotion and push the slide S forward in its stroke,while at the same timethe other driver is moved out of its notch in its adjoining disk, andthe cog-wheel of which this latter driver forms a part thenpartakesofthe motion of theslide S and revolves around the shaft in a directioncontrary to the other cog-wheel until the other end of the stroke isattained,when its driver mounts in turn the inclined plane at the end ofthe slide, engaging with its circular disk and releasing the otherdriver from its notch in its circular disk, so that the former driver,engaging in the notch of its adjoining disk, causes its cogwheel to workthe slide back again on its stroke by meshing with its rack, while theother cog-wheel, being freed from its circular disk, moves around theshaft in a direction contrary to its adjoining cog-wheel, and has motioncommunicated to it by the slide until the end of the backward stroke isattained, when the process is repeated, and thus the reciprocatingmotion of the slide which actuates the piston is kept up.

All parts of the gearing,shafting, cog-wheels, &c., must of course bekept properly lubricated, so as to reduce friction as far as possibleand insure the easy working of the various parts.

When the slide runs only half-way, retnrn ing in its movement at thehal-f-circun'iference of the cog-wheel, as before indicated, an inclinedplane,W, should be placed half-way on the rack, as shown in Fig. 2.

Fig. 1 shows the machine complete and in operation just at thecommencement of a stroke. The driver M has just mounted the inclinedplane y, and has engaged with the notch O in the circular disk T,,whichhas a motion, as indicated by the arrow-head, and the motion of thecog-wheel G has just become reversed, as indicated by saidarrow-- head,partaking of the motion of said disk T, and is moving the slide Sforward in its stroke,

as shown by arrow-head. At the same time the other cog-wheel, F, hasjust been moved out of its notch O and has commenced to move clear ofits adjoining disk, A, in a direction opposite to whatit has just hadwhen its pusher was engaged in its notch 0. Its present motion isindicated by the arrow-head. The lips f on the said. driver E are movingforward, as indicated by the arrow-head, to meet plate 12, so that bythe time the driverM has revolved round clear of the side of slide thesaid pusher E, working on the plate 12, will be in aposition to keep thecog-wheelsin place and the pusher M in its notch C. By the time thelipsf have revolved around free of plate 19 the lips k on pusher M willhave met the opposite plate, q, and engaged with it, still keeping thecog-wheels in position and the driver M. in its notch C. By the timedriver M has sufficiently revolved around to clear side plate, q, theend of the stroke is attained and the cog-wheels drop or are pushed intoposition by the inclined plane 00, releasing the pusher on cog-wheel Gfrom its notch G in the circular disk T, while the other driver, E, oncog-wheel F becomes engaged in the notch G of the disk A, and the motionof the cog-wheels F and G becomes reversed, thus driving the slide S onits return stroke and communicating to the slide a reciprocating motion.On the return stroke the lips of the drivers E and M do not engage withthe side plates and q.

On the driving shaft or spindle D may be placed a ratchet-wheel, N, anda pawl, n, at-

tached to the frame of the machine in order to prevent reflex action,the proper direct-ion of the motion of said shaft being the same as thehands of a watch.

What we claim as our invention is- 1. The cog-wheels F and G, connectedtogether by ring 9 and hook-shaped lugs h 71 the circnlardisks A and T,having notches CO, the

drivers E andM, which drivers have lips f and 76 formed to move on sideplates, p and q, said cog'wheels and circular disks being placed on theshaft D, in combination with the racks R R in the slide S, working inproper bearings, said slide having also formed thereon the inclinedplanes :0 and y, in the manner'and for the purpose specified.

2. The cog-wheels F and G, connected together by ring g and hook-shapedlugs h h, the

circular disks A and T, having notches G 0 formed thereon, the drivers Eand M, which drivers have lips f and it formed to move on the sideplates, 11 and q, as described, said cogwheels and circular disks beingplaced on the shaft D, ratchet-wheel N, and pawl n, in combination withthe racks R R inthe slide S, working in suitable bearings, said slidehaving also formed thereon the inclined planes at and 3 for the purposeof throwing said cogwheels into and out of gear with said circulardisks, as specified.

3. The cog-wheels F and G, connected together by ring 9 and hook-shapedlugs h h, the circular disks A and T, having notches O O, the drivers Eand M, having the lips f and 7c andplate p, the shaft D, theratchet-wheel N, and pawl n, in combination with the racks R R in theslide S, which works in suitable bearings, having inclined plane at andinclined plane W, the latter being formed at the middle of the slide, asindicated, and for the purposes specified.

4. The combination, with two cog-wheels connected together and a centralshaft around which said wheels are adapted to revolve in oppositedirections, of a ratchet-wheel and pawl constructed to prevent reflexaction of said shaft, two disks. rigidly connected to said shaft andprovided with notches, drivers on said cog-wheels engaging said notchesand pro vided at their ends with lips, side plates with which said lipsengage, a slide which gives motion to the piston, inclined planes formedon said slide, and racks seton different planes in said slide andengaging the cog-wheels, all

substantially as and for the purpose specified. Donald, BritishColumbia, February 24, 1887.

PETER P. FINDLAY. ANGUS 1VIOINNIS.

In presence of A. M. KNAPP, S. REGNIER SHERIFF.

